| 摘要 |
A device for controlling and actuating light-blocking means in double-glazing units (10) of the type constituted by a rectangular frame (11) which supports at least two transparent or translucent panes(12) which are mutually parallel and spaced so as to form a chamber (13) isolated from the outside and inside which the light-blocking means (14) are accommodated and moved, by actuator means (15), from an extended configuration for blocking the light to a gathered or rolled-up configuration which allows light to pass freely, and viceversa. The device comprises at least one permanent magnet (20) which is associated with the light-blocking means (14) and at least one sensor (21,22) which is fixed to the frame (11) in order to signal that the light-blocking means (14) have passed and/or have reached their position. <IMAGE> |
